<!DOCTYPE html>
<html lang="en">
<style type="text/css">
    body {
        background: url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1596015248170&di=e4e42d2d19384082c888308dc5817f25&imgtype=0&src=http%3A%2F%2Fimgup02.fanw8.com%2Ffanw8%2F2018-08%2F14%2F10%2F15342134734066_4.jpg);
        background-size: 100% 100%;
        background-attachment: fixed;
    }
</style>
<head>
    <meta charset="utf-8">
    <title>用户登录</title>
</head>
<body>

</body>
</html>
